Insert for a breast pump



FIG. 1 is a perspective view of an embodiment of the insert for a breastpump;

FIG. 2 is a front elevation view of the embodiment of the insert for abreast pump shown in FIG. 1;

FIG. 3 is a back elevation view of the embodiment of the insert for abreast pump shown in FIG. 1; and,

FIG. 4 is a side elevation view of the insert for a breast pump shown inFIG. 1, wherein both sides of the bottle are identical.

CLAIM The ornamental design for an insert for a breast pump, as shownand described.